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CVE-2017-11398

35
FAUCET Score

CVE-2017-11398 is a session hijacking vulnerability affecting Trend Micro Smart Protection Server (Standalone) versions 3.2 and below, allowing unauthenticated attackers to hijack active user sessions through log disclosure. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists on ExploitDB (EDB-43388), and the vulnerability has garnered some community discussion and media coverage, suggesting awareness among threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2CPE matchmatch criteria
cpe:2.3:a:trendmicro:smart_protection_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.20%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-43388 · Dec 19, 2017
This CVE's current EPSS score of 0.0819 is in the 94th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

success.trendmicro.com / solution/1118992
Vendor Advisory
coresecurity.com / advisories/trend-micro-smart-protection-server-multiple-vulnerabilities
ExploitThird Party Advisory
exploit-db.com / exploits/43388
Third Party AdvisoryVDB Entry
securityfocus.com / bid/102275
Third Party AdvisoryVDB Entry